How do nicotine and tobacco cause cancer? check all that apply by weakening the body’s immune system by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

Nicotine and tobacco causes cancer by damaging or changing a cell's DNA by increasing heart rate by increasing phlegm and mucous production.

Explanation:

Cancer is caused by abnormally increased rates of cell division. The factors that cause this increased cell division are called carcinogens. Carcinogens cause mutations in the cells.

It is believed that tobacco smoke contains cancerous chemicals and they make up 70 percent of it. The residue tar is left in the lungs by the use of tobacco. This can cause lung damage and eventually lead to cancer.

Thus accelerated cell growth that becomes tumours might be the fate of a person addicted to nicotine products.